Recent Log Entries

5th Pass Horizontal Separator LCW flow/RF stability

Log Number: 3747626Logbook(s): Body: 

In the 5th Pass H Separator LCW flow drops gradually ( allegedly due to a cavitation) and resonance control system compensate it by reducing LCW heater power ( blue line). From time to time ( 24 h or so) RF personnel needs to manually adjust flow to avoid the flow drops below the operability level. An additional issues of RF field modulation can be observed ( lines green,red,brown and black) while system becomes too warm. While the vector sum of cavity fields remains constant, individual cavities field undergoes a 2-3 % of modulation.

iocha48 restored

Log Number: 3747624Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-12-06 09:58:24 The output from the myRestore execution was as follows: iocha48 magnet_MAG@2019-12-06 09:58 12(12) restored Pause: 2 second(s) magnet_HVAL@2019-12-06 09:58 3(3) restored Pause: 2 second(s) magnet_LOOP@2019-12-06 09:58 3(3) restored Pause: 2 second(s) magnet_CMPQ@2019-12-06 09:58 6(6) restored system@2019-12-06 09:58 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocha48 (success) Procedure return status: Success

iocsoftitf1 restored

Log Number: 3747623Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-12-06 09:56:58 The output from the myRestore execution was as follows: iocsoftitf1 TEK11801A@2019-12-06 09:56 17(17) restored systemEnum@2019-12-06 09:56 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ued -A -s -i iocsoftitf1 (success) Procedure return status: Success

Operator SIGN IN

Log Number: 3747611Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Gauthier
DATE:             12/06/2019
SHIFT:               Day

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log

eosasw1 died due to Hall A UPS failure

Log Number: 3747607Logbook(s): Entry Makers: cuffecumbiaBody: 

eosasw1 was fried when the UPS in rack 1H75L03 went into an inconsistent state. By this, I mean that the front panel was simply showing battery capacity 0 and it was unresponsive when using any of the front panel buttons. The switch was replaced and we deployed a small dedicated UPS for the new switch. We will deploy one of our standard UPSs for the switch when running completes.

Operator SIGN IN

Log Number: 3747584Logbook(s): Body:  ACCELERATOR OPERATOR SIGN IN FORM OPERATOR:    Jones
DATE:             12/06/2019
SHIFT:               Day

The operator has read the following:
  • ELOG
  • PD Shift Plan
  • Radiation Surveys for PSS Segments in Controlled Access
  • PSS Log

iocibc1h00b restored

Log Number: 3747583Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-12-06 03:39:17 The output from the myRestore execution was as follows: iocibc1h00b <NOTE> bpmdr_ibc: Provided macro *IOC* is never used bpmdr_ibc bpmdr_ALPHA@2019-12-06 03:39 2(2) restored bpmdr_CALCONS_ibc@2019-12-06 03:39 9(9) restored bpmdr_CALFACS1@2019-12-06 03:39 6(6) restored bpmdr_CALFACS2@2019-12-06 03:39 12(12) restored bpmdr_DISBPM@2019-12-06 03:39 1(1) restored bpmdr_GOF2BPM@2019-12-06 03:39 12(12) restored bpmdr_GOFBPM@2019-12-06 03:39 5

iochla3 restored

Log Number: 3747581Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-12-06 03:39:10 The output from the myRestore execution was as follows: iochla3 system@2019-12-06 03:39 2(2) restored caen6533@2019-12-06 03:39 48(48) restored ioncham2@2019-12-06 03:39 40(40) restored vac@2019-12-06 03:39 11(11) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iochla3 (success) Procedure return status: Success

iocha48 restored

Log Number: 3747580Logbook(s): Tags: Body: restorelib 2.1 Target restore date was 2019-12-06 03:39:18 The output from the myRestore execution was as follows: iocha48 magnet_MAG@2019-12-06 03:39 12(12) restored Pause: 2 second(s) magnet_HVAL@2019-12-06 03:39 3(3) restored Pause: 2 second(s) magnet_LOOP@2019-12-06 03:39 3(3) restored Pause: 2 second(s) magnet_CMPQ@2019-12-06 03:39 6(6) restored system@2019-12-06 03:39 2(2) restored Execute: /usr/csite/certified/bin/ced2Epics -ced ced -A -s -i iocha48 (success) Procedure return status: Success

FSD Summary

Log Number: 3747571Logbook(s): Entry Makers: beneschBody: 

1L25 again. Since there are only 29 C100 FSDs in figure 1, the six fault bits for cavities 3 and 4 are probably redundent.

CREW CHIEF SIGN IN

Log Number: 3747570Logbook(s): Body: 
THOMAS JEFFERSON NATIONAL ACCELERATOR FACILITY
ACCELERATOR OPERATIONS CREW CHIEF SIGN IN FORM

Date : 12-06-19
Time : 07:23:13
Day : Friday
Shift : Day

Crew Chief : Merz
Program Deputy: Malace
Team : E
Arm : Jones
Designated SSO: Gauthier
Operators : Gauthier, Jones

This stamp certifies that the above Crew Chief has read/reviewed/received the following:

APPROVED Replace gauge: no N2 Flow to Hall C Dump

Log Number: 3747569Logbook(s): Body: 

N2 generator is under the control of Facilities.
If isolation valves are not available, check with FML.

Also, be sure you talk with Keith Welch before interrupting flow to the dump as they are interested in all things dump purging.

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